private bool ExistsNullGuest()
{
List <string> candidateGuestNames = GetCandidateGuestNames();
bool result = candidateGuestNames.Any(guestName => SessionController.GetUserByName(guestName) is null);
return(result);
}
private void LogOnButton_Click(object sender, RoutedEventArgs e)
{
userNameProvided = textBoxUserNameProvided.Text;
currentUser = SessionController.GetUserByName(userNameProvided);
if (IsExistingUser())
{
SessionController.CurrenUser = currentUser;
MainWindow.Refresh();
}
else
{
ShowLogOnValidationMessage();
}
}
private void AddInvalidGuestNamesToValidationMessages()
{
const string nameFormat = "- {0}";
foreach (string name in this.GetCandidateGuestNames())
{
bool isOwnerUser = name == sourceAppointment.Owner.Name;
bool isNonExistentUser = SessionController.GetUserByName(name) == null;
bool isInvalidGuest = isOwnerUser | isNonExistentUser;
if (isInvalidGuest)
{
validationMessages.Add(string.Format(CultureInfo.CurrentCulture, nameFormat, name));
}
}
}
private bool IsOwnerInvited()
{
bool result = false;
List <string> candidateGuestNames = GetCandidateGuestNames();
foreach (string name in candidateGuestNames)
{
User candidateGuest = SessionController.GetUserByName(name);
bool isOwner = sourceAppointment.IsOwner(candidateGuest);
if (isOwner)
{
result = true;
break;
}
}
return(result);
}
private List <User> GetValidGuests()
{
List <User> result = new List <User>();
List <string> candidateGuestNames = GetCandidateGuestNames();
foreach (string name in candidateGuestNames)
{
User candidateGuest = SessionController.GetUserByName(name);
bool isNotOwner = !sourceAppointment.IsOwner(candidateGuest);
if (isNotOwner)
{
result.Add(candidateGuest);
}
}
return(result);
}
private void AddCollisionedGuestNamesToValidationMessages()
{
const string nameFormat = "- {0}";
foreach (string name in this.GetCandidateGuestNames())
{
User guest = SessionController.GetUserByName(name);
bool isNotNullGuest = !(guest is null);
if (isNotNullGuest)
{
bool isNotOwner = !sourceAppointment.IsOwner(guest);
bool isColliding = guest.HasAppointmentCollision(sourceAppointment);
if (isNotOwner & isColliding)
{
validationMessages.Add(string.Format(CultureInfo.CurrentCulture, nameFormat, name));
}
}
}
}
public LogOnForm()
{
InitializeComponent();
currentUser = SessionController.GetUserByName(userNameProvided);
}
